void Ep3Handler(void)
{
struct s3c24x0_interrupt *intregs = s3c24x0_get_base_interrupt();
struct s3c24x0_usb_device *const usbdevregs = s3c24x0_get_base_usb_device();
U8 out_csr3;
int fifoCnt;
usbdevregs->INDEX_REG = 3;
out_csr3 = usbdevregs->OUT_CSR1_REG;
DbgPrintf("<3:%x]",out_csr3);
if(out_csr3 & EPO_OUT_PKT_READY) {
fifoCnt = usbdevregs->OUT_FIFO_CNT1_REG;
if (downloadFileSize == 0) {
RdPktEp3((U8 *)downPt, 8);
if(download_run == 0) {
downloadAddress = tempDownloadAddress;
} else {
downloadAddress = *((U32 *)downPt);
dwUSBBufReadPtr = downloadAddress;
dwUSBBufWritePtr = downloadAddress;
}
downloadFileSize = *((U32 *)(downPt + 4));
DbgPrintf("[dwaddr = %x, dwsize = %x]\n",
downloadAddress, downloadFileSize);
checkSum = 0;
downPt = (U8 *)downloadAddress;
/* The first 8-bytes are deleted. */
RdPktEp3_CheckSum((U8 *)downPt, fifoCnt-8);
downPt += fifoCnt - 8;
#if USBDMA
/*
* 传输由中断发起(只接收头一个Pkg)，由DMA完成.
* 因此发生中断后就禁止USBD中断，在DMA传输完成
* 后再次开启.
*/
intregs->INTMSK |= BIT_USBD;
return;
#endif
} else {
RdPktEp3_CheckSum((U8 *)downPt, fifoCnt);
downPt += fifoCnt; //fifoCnt = 64
}
CLR_EP3_OUT_PKT_READY();
return;
}
if (out_csr3 & EPO_SENT_STALL) {
DbgPrintf("[STALL]");
CLR_EP3_SENT_STALL();
return;
}
}
void Ep3Handler(void)
{
U8 out_csr3;
int fifoCnt;
rINDEX_REG=3;
out_csr3=rOUT_CSR1_REG;
DbgPrintf("<3:%x]",out_csr3);
if(out_csr3 & EPO_OUT_PKT_READY)
{
fifoCnt=rOUT_FIFO_CNT1_REG;
#if 0
RdPktEp3(ep3Buf,fifoCnt);
PrintEpoPkt(ep3Buf,fifoCnt);
#else
if(downloadFileSize==0)
{
RdPktEp3((U8 *)downPt,8);
if(download_run==0)
{
downloadAddress=tempDownloadAddress;
}
else
{
downloadAddress=
*((U8 *)(downPt+0))+
(*((U8 *)(downPt+1))<<8)+
(*((U8 *)(downPt+2))<<16)+
(*((U8 *)(downPt+3))<<24);
}
downloadFileSize=
*((U8 *)(downPt+4))+
(*((U8 *)(downPt+5))<<8)+
(*((U8 *)(downPt+6))<<16)+
(*((U8 *)(downPt+7))<<24);
checkSum=0;
downPt=(U8 *)downloadAddress;
RdPktEp3_CheckSum((U8 *)downPt,fifoCnt-8); //The first 8-bytes are deleted.
downPt+=fifoCnt-8;
#if USBDMA
//CLR_EP3_OUT_PKT_READY() is not executed.
//So, USBD may generate NAK until DMA2 is configured for USB_EP3;
rINTMSK|=BIT_USBD; //for debug
return;
#endif
}
else
{
#if USBDMA
Uart_Printf("<ERROR>");
#endif
RdPktEp3_CheckSum((U8 *)downPt,fifoCnt);
downPt+=fifoCnt; //fifoCnt=64
}
#endif
CLR_EP3_OUT_PKT_READY();
if(((rOUT_CSR1_REG&0x1)==1) && ((rEP_INT_REG & 0x8)==0))
{
fifoCnt=rOUT_FIFO_CNT1_REG;
RdPktEp3_CheckSum((U8 *)downPt,fifoCnt);
downPt+=fifoCnt; //fifoCnt=64
CLR_EP3_OUT_PKT_READY();
}
return;
}
//I think that EPO_SENT_STALL will not be set to 1.
if(out_csr3 & EPO_SENT_STALL)
{
DbgPrintf("[STALL]");
CLR_EP3_SENT_STALL();
return;
}
}
